<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <div>
        <ul>
            <li id="l1">张三</li>
            <li id="l2">李四</li>
            <li>王五</li>
            <a href="" id="" class="a1">搜索</a>
            <span>哈哈哈</span>

        </ul>
    </div>
<a href="" title="a2">百度</a>

<div id="d1">

    <span>
        哈哈哈哈哈哈
    </span>
</div>
<p id="p1" class="p1">呵呵呵</p>

</body>
</html>